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  <title>Class: Category</title>
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    <div id="classHeader">
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          <td><strong>Class</strong></td>
          <td class="class-name-in-header">Category</td>
        </tr>
        <tr class="top-aligned-row">
            <td><strong>In:</strong></td>
            <td>
                <a href="../files/app/models/category_rb.html">
                app/models/category.rb
                </a>
        <br />
            </td>
        </tr>

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            <td><strong>Parent:</strong></td>
            <td>
                ActiveRecord::Base
            </td>
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    <div id="method-list">
      <h3 class="section-bar">Methods</h3>

      <div class="name-list">
      <a href="#M000006">datasheet_ids=</a>&nbsp;&nbsp;
      <a href="#M000005">home_page</a>&nbsp;&nbsp;
      <a href="#M000004">to_param</a>&nbsp;&nbsp;
      </div>
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    <div id="methods">
      <h3 class="section-bar">Public Class methods</h3>

      <div id="method-M000005" class="method-detail">
        <a name="M000005"></a>

        <div class="method-heading">
          <a href="#M000005" class="method-signature">
          <span class="method-name">home_page</span><span class="method-args">()</span>
          </a>
        </div>
      
        <div class="method-description">
          <p><a class="source-toggle" href="#"
            onclick="toggleCode('M000005-source');return false;">[Source]</a></p>
          <div class="method-source-code" id="M000005-source">
<pre>
    <span class="ruby-comment cmt"># File app/models/category.rb, line 16</span>
16:   <span class="ruby-keyword kw">def</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">home_page</span>
17:     <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">find</span>(<span class="ruby-identifier">:all</span>, <span class="ruby-identifier">:conditions</span> =<span class="ruby-operator">&gt;</span> [<span class="ruby-value str">&quot;home_page = ?&quot;</span>, <span class="ruby-keyword kw">true</span>])
18:   <span class="ruby-keyword kw">end</span>
</pre>
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      <h3 class="section-bar">Public Instance methods</h3>

      <div id="method-M000006" class="method-detail">
        <a name="M000006"></a>

        <div class="method-heading">
          <a href="#M000006" class="method-signature">
          <span class="method-name">datasheet_ids=</span><span class="method-args">(ids)</span>
          </a>
        </div>
      
        <div class="method-description">
          <p>
This method is used capture checkboxes for <a
href="Datasheet.html">Datasheet</a> and <a
href="Category.html">Category</a> associated by a has_many :through =&gt;
:attachments See this link for a detailed discussion: <a
href="http://railsforum.com/viewtopic.php?id=803">railsforum.com/viewtopic.php?id=803</a>
</p>
          <p><a class="source-toggle" href="#"
            onclick="toggleCode('M000006-source');return false;">[Source]</a></p>
          <div class="method-source-code" id="M000006-source">
<pre>
    <span class="ruby-comment cmt"># File app/models/category.rb, line 23</span>
23:         <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">datasheet_ids=</span>(<span class="ruby-identifier">ids</span>)
24:           <span class="ruby-identifier">attachments</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">attachment</span><span class="ruby-operator">|</span>
25:             <span class="ruby-comment cmt"># Need to destroy the item that was not checked.</span>
26:             <span class="ruby-identifier">attachment</span>.<span class="ruby-identifier">destroy</span> <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">ids</span>.<span class="ruby-identifier">include?</span> <span class="ruby-identifier">attachment</span>.<span class="ruby-identifier">datasheet_id</span>
27:           <span class="ruby-keyword kw">end</span>
28: 
29:           <span class="ruby-identifier">ids</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">ds_id</span><span class="ruby-operator">|</span>
30:             <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">attachments</span>.<span class="ruby-identifier">create</span>(<span class="ruby-identifier">:datasheet_id</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">ds_id</span>) <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">attachments</span>.<span class="ruby-identifier">any?</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">d</span><span class="ruby-operator">|</span> <span class="ruby-identifier">d</span>.<span class="ruby-identifier">datasheet_id</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">ds_id</span> }
31:           <span class="ruby-keyword kw">end</span>
32:         <span class="ruby-keyword kw">end</span>
</pre>
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      </div>

      <div id="method-M000004" class="method-detail">
        <a name="M000004"></a>

        <div class="method-heading">
          <a href="#M000004" class="method-signature">
          <span class="method-name">to_param</span><span class="method-args">()</span>
          </a>
        </div>
      
        <div class="method-description">
          <p><a class="source-toggle" href="#"
            onclick="toggleCode('M000004-source');return false;">[Source]</a></p>
          <div class="method-source-code" id="M000004-source">
<pre>
    <span class="ruby-comment cmt"># File app/models/category.rb, line 12</span>
12:   <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">to_param</span>
13:     <span class="ruby-node">&quot;#{id}-#{name.downcase.gsub(/[^[:alnum:]]/,'-')}&quot;</span>.<span class="ruby-identifier">gsub</span>(<span class="ruby-regexp re">/-{2,}/</span>,<span class="ruby-value str">'-'</span>)   
14:   <span class="ruby-keyword kw">end</span>
</pre>
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